The agent visiting your website knows the person who sent it. That is the shift underneath Google’s Gemini Deep Research Max , launched on April 21, 2026, as a public preview on the paid Gemini API tier. Deep Research Max itself is a narrow rollout. The pattern it ships is a preview of what the agentic web becomes when the other major vendors follow, which they typically do within a quarter or two on capabilities like this. When a blended-retrieval agent runs, it arrives with private context: the user’s financial data, their file stores, their connected professional data streams, all fused into the query before the agent reaches any page. For web professionals, this is the next chapter of the agentic web story . The claim that agents are a new primary visitor class has held for months. The claim has since evolved. Agents are a new primary visitor class with private context . The reasoning that decides whether your page answers a query runs on a larger input set than your page.…